Systems and methods for identifying a set of characters in a media file

ABSTRACT

The illustrative embodiments described herein provide systems and methods for notifying a user when a set of characters are identified in a media file. In one embodiment, a method includes receiving a set of characters inputted by the user of a computing device, playing the media file, transcribing the media file to form a transcription, and determining whether the transcription of the media file includes the set of characters. The method also includes initiating a notification prompt on a graphical user interface of the computing device in response to determining that the media file includes the set of characters.

BACKGROUND Field of the Invention

The present invention relates generally to systems and methods foridentifying a set of characters. More particularly, the presentinvention relates to identifying a set of characters in one or moremedia files.

Description of the Related Art

As higher volumes of data are able to be stored and transmitted withinand across computer systems, media files (e.g., audio files, videofiles, audio/video files, etc.) have become a daily part of our lives.The rise of MP3 players and websites such as YouTube® are examples ofhow media files have become ingrained in our society. Media files oftencontain human speech, such as the sung lyrics of a song or humandialogue in a video. Current users of media files may have no convenientway of being notified when a media file contains particular charactersor words. In addition, current systems may not be able to identifyuser-defined characters or words in a playing media file. For example, auser may want to know whether a media file playing on his or hercomputer or other device contains a particular phrase, but currentsystems may not be able to identify such user-defined phases or providenotification to the user when the phrase is found in the media file.

SUMMARY

The illustrative embodiments described herein are directed to a dataprocessing system and, in particular, to systems and methods fornotifying a user when a set of characters are identified in a mediafile. In one embodiment, a method includes receiving a set of charactersinputted by the user of a computing device, playing the media file,transcribing the media file to form a transcription, and determiningwhether the transcription of the media file includes the set ofcharacters. The method also includes initiating a notification prompt ona graphical user interface of the computing device in response todetermining that the media file includes the set of characters.

In another embodiment, a system for notifying a user when a set of wordsis identified in a media file includes a transcription module totranscribe the media file to form a transcription, and an identificationmodule to identify a segment of the media file that includes auser-defined set of words. The identification module uses thetranscription to identify the segment of the media file that includesthe user-defined set of words. The system also includes a notificationmodule to notify the user in response to identifying the segment of themedia file that includes the user-defined set of words.

In another embodiment, a computing device includes a bus system and amemory connected to the bus system. The memory includes a set ofinstructions. The data processing system includes a processing unitconnected to the bus system. The processing unit executes the set ofinstructions to receive a set of characters inputted by a user of acomputing device, play a media file, and transcribe the media file toform a transcription. The processing unit also executes the set ofinstructions to identify a beginning time point of a segment of themedia file containing the set of characters. The transcription is usedto identify the beginning time point. The processing unit also executesthe set of instructions to identify an ending time point of the segmentof the media file containing the set of characters. The transcription isused to identify the ending time point. The processing unit alsoexecutes the set of instructions to store the beginning time point andthe ending time point in the memory.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is schematic pictorial representation of a computing device onwhich the illustrative embodiments may be implemented;

FIG. 2 is a schematic, block diagram of a character identification andnotification system according to an illustrative embodiment;

FIG. 3 is a schematic, pictorial representation of an entry promptaccording to an illustrative embodiment;

FIG. 4 is a schematic diagram representing a media file in which a firstsegment and a second segment are identified according to an illustrativeembodiment;

FIG. 5 is a schematic, pictorial representation of a notification promptaccording to an illustrative embodiment;

FIG. 6 is a schematic flowchart of a process for notifying a user when aset of characters is identified in a media file according to anillustrative embodiment;

FIG. 7 is a schematic flowchart of a process for notifying a user when aset of characters is identified in a media file according to anotherillustrative embodiment; and

FIG. 8 is a schematic, block diagram of a computing device in which theillustrative embodiments may be implemented.

DETAILED DESCRIPTION

Referring to FIGS. 1-5 , an illustrative embodiment of a characteridentification and notification system 100 implemented on a computingdevice 102 is shown. Although the computing device 102 is a cellularphone in the example of FIG. 1 , the computing device 102 may be anydevice capable of processing data, such as a smart phone, walkie talkie,netbook, personal digital assistant, mini-computer, digital musicplayer, digital reader, portable gaming device, web browsing device,etc. The computing device 102 includes a graphical user interface 104 onwhich a notification prompt 106 may be displayed when a set ofcharacters 108 is identified in a media file 110. The media file may beany file that contains audio, such as audio files, video files, oraudio/video files. Unless otherwise indicated, as used herein, “or” doesnot require mutual exclusivity. Non-limiting examples of the media file110 include an MP3 file, an MPEG file, an AVI file, a WAV file, etc. Themedia file 110 may be concurrently playing while the set of characters108 is identified in the media file 110 and a notification is generated.The set of characters 108 may be one or more characters in any languageor character set, including a word, a phrase, etc. In an example inwhich the set of characters 108 is a set of words, the set of words mayinclude one or more words.

In one embodiment, the character identification and notification system100 initiates an entry prompt 112 on the graphical user interface 104,and a user 114 inputs the characters 108 in a query field 116 on theentry prompt 112. The entry prompt 112 is shown in FIG. 3 according toan illustrative embodiment. The characters 108 entered in the queryfield 116 may be, for example, a word that the user 114 would like to beidentified in the media file 110, or in any of the media files containedin a media database 118. Upon entering the characters 108 in the queryfield 116 of the entry prompt 112, the user 114 may select a submitbutton 120, which causes the characters 108 to be submitted to thecharacter identification and notification system 100. The user 114 mayalso select a clear button 122 that clears the query field 116. Theentry prompt 112 also includes a cancel button 124 that closes the entryprompt 112.

In one embodiment, the character identification and notification system100 includes a transcription module 126 that transcribes the media file110 by converting speech, or audio, in the media file 110 into text. Thetranscription module 126 may include, or work with, a speech-to-textapplication 128. In one non-limiting example, the speech-to-textapplication 128 may originate from an outside, or third-party, source,such as Nuance's Dragon® NaturallySpeaking® speech recognition software,YouTube®, or any other voice recognition software or software source.

In one embodiment, a media player 130 plays the media file 110 as thetranscription module 126 transcribes the media file 110. By way ofspecific example, if the computing device 102 is an MP3 player and themedia file 110 is an MP3 file, the media player 130 may play the MP3file while the transcription module 126 transcribes the MP3 file. Asdescribed below, the user 114 may be notified as to whether thecurrently playing media file 110 contains the characters 108.

In another embodiment, the transcription module 126 transcribes any orall of the media files contained in the media database 118 regardless ofwhether the media files contained in the media database are being playedby the media player 130. This embodiment may be used, for example, whenthe user 114 desires to know whether or not the media contained in themedia database 118 includes the characters 108. Thus, the user 114 isable to know whether or not the media in the media database 118 includesthe characters 108 even if the media contained in the media database 118is not currently playing.

The transcription module 126 transcribes the media file 110 to form atranscription 132 of the media file 110. The character identificationand notification system 100 includes an identification module 134, whichuses the transcription 132 of the media file 110 to determine whetherthe media file 110 includes the characters 108. In one embodiment, theidentification module 134 determines whether the transcription 132includes the characters 108. In another embodiment, the identificationmodule 134 uses the transcription 132 to identify one or more segmentsof the media file 110 that include the characters 108. Theidentification module 134 may also identify a beginning time point andending time point for each of the segments identified that includes thecharacters 108.

An example of identifying one or more segments of the media file 110that contain the characters 108 is shown with particular reference toFIG. 4 . FIG. 4 is a schematic representation of the span of the mediafile 110 over time, which includes the beginning 136 and the end 138 ofthe media file 110. In the example of FIG. 4 , the identification module134 identifies a first segment 140 and a second segment 142 ascontaining the characters 108. For example, if the user 114 enters andsubmits the word “money” using the entry prompt 112, the identificationmodule 134 may identify the first segment 140 and the second segment 142as being the segments of the media file 110 that include the word“money”. The identification module 134 uses the transcription 132 of themedia file 110 to determine the segments of the media file 110 thatinclude the characters 108.

In one embodiment, the identification module 134 identifies a beginningtime point 144, 148 and an ending time point 146, 150 of each segment inthe media file 110 in which the characters 108 occur. The beginning timepoint 144, 148 and the ending time point 146, 150 may be stored in amemory, and may be referenced at a later time. In one non-limitingexample, the beginning and ending time points 144, 146, 148, 150 areexpressed as elapsed, or remaining, times within the total time span ofthe media file 110. In the example of FIG. 4 , the identification module134 identifies the first segment 140 as having the beginning time point144 and the ending time point 146, and the second segment 142 as havingthe beginning time point 148 and ending time point 150.

Another illustrative embodiment is shown with respect to the firstsegment 140 in FIG. 4 . In this embodiment, the characters 108 occurwithin a sub-segment 152 of the first segment 140. Also in thisembodiment, the identification module 134 identifies the beginning timepoint 144 to be a first time period 154 before the sub-segment 152. Theidentification module 134 may also identify the ending time point 146 tobe a second time period 156 after the sub-segment 152. The first timeperiod 154 and the second time period 156 may be any predetermined timeperiod, and may be selected by the user 114. By including the first timeperiod 154 and the second time period 156, a “buffer time zone” may beadded before and after the occurrence of the characters 108 within themedia file 110. Such a buffer time zone may be useful, for example, whenplaying back the first segment 140 of the media file 110 using the mediaplayer 130.

As discussed above, the identification module 134 may identify the firstsegment 140 and the second segment 142 at the same time that the mediaplayer 130 plays the media file 110. In one embodiment, theidentification module 134 may also monitor all media files playedthereafter by the media player 130, and determine whether thesubsequently-played media files contain the characters 108. Suchsubsequently-played media files may include any media files that areplayed after the user 114 submits the characters 108. The identificationmodule 134 may also identify any segments in those subsequently-playedmedia files that contain the characters 108.

In another embodiment, segments of any or all media files in the mediadatabase 118 may be identified by the identification module 134 usingtranscriptions of the media files that are generated by thetranscription module 126. In this embodiment, segments may be identifiedregardless of whether the associated media file is currently playing. Inone specific non-limiting example, the user 114 may desire to knowwhether the characters 108 are included in the media files contained ina particular directory, or storage unit, of his or her computing device102. In this example, the identification module 134 may identify orreport any occurrences of the characters 108 in the media filescontained in the directory, as well as the media file segments in whichthe characters 108 occur.

In one embodiment, upon determining that the media file 110 includes thecharacters 108, or upon identifying the segment(s) of the media file 110that include the characters 108, a notification module 158 may notifythe user 114. For example, the notification module 158 may notify theuser 114 using an audio or visual alert. In one embodiment, thenotification module 158 initiates the notification prompt 106 on thegraphical user interface 104. A non-limiting example of the notificationprompt 106 is shown in FIG. 5 . The possible graphical elements of thenotification prompt 106 are numerous. For example, the notificationprompt 106 may show the characters 108, the name of the media file 110,the length of the media file 110, the time span of the first segment 140or the second segment 142, the beginning time points 144, 148 and theending time points 146, 150 of the first segment 140 or the secondsegment 142, respectively, etc. A notification prompt 106 havingslightly different graphical elements is shown in FIG. 1 .

The notification prompt 106 may also include a play button 160, whichcauses the computing device 102 to play the identified segment of themedia file 110. The notification prompt 106 may also include a downloadbutton 162, which causes the character identification and notificationsystem 100 to initiate downloading of the identified segment.Downloading the identified segment may be useful when the entire mediafile 110, but no segments thereof, is included on the media database118. The download function may also be useful when the media database118 or the media file 110 are not stored on the computing device 102,and are instead located at a remote location, such as across theInternet. In one example, the user 114 may download the first segment140 or the second segment 142 instead of, or in addition to, the mediafile 110. The notification prompt 106 may also include a close button164, which closes the notification prompt 106.

Although the character identification and notification system 100 isshown to be implemented on the computing device 102, the characteridentification and notification system 100, as well as the mediadatabase 118, may be included on a remote computer and connected to thecomputing device 102 via a network connection, including over theInternet. In another embodiment, the character identification andnotification system 100 is an application that may be downloaded from aserver over a wireless network, such as the Internet. Also, the mediaplayer 130 may be separate from the character identification andnotification system 100, and may be a media player that originates froma third party, such as Microsoft®.

The illustrative embodiments may be used to notify the user 114 when aword or phrase is spoken, or otherwise contained, in his or her songs,movies, or TV episodes. Identifying such user-defined words or phrasescan help to identify recurring story lines in the user's media.Identifying such user-defined words or phrases may also link seeminglydissimilar media files, such as when the character identification andnotification system 100 identifies a phrase that is normally heard in aparticular TV episode in an unrelated song.

Referring to FIG. 6 , an illustrative embodiment of a process that maybe executed by the character identification and notification system 100in FIG. 3 includes receiving a set of characters from a user (step 201).The process includes playing a media file (step 203). In an alternateembodiment, step 203 is not included in the process.

The process also transcribes the media file to form a transcription(step 205). The process determines if the transcription of the mediafile includes the set of characters (step 207). If the transcription ofthe media file does not include the set of characters, the processterminates.

If the process determines that the transcription of the media fileincludes the set of characters, the process initiates a notificationprompt on the graphical user interface of a computing device associatedwith the user (step 209). The process then terminates

Referring to FIG. 7 , an illustrative embodiment of a process that maybe executed by the character identification and notification system 100in FIG. 3 is shown. The process of FIG. 7 shows one non-limiting exampleof the implementation of steps 207 and 209 in FIG. 6 . The process inFIG. 7 includes using the transcription to identify a segment of themedia file that includes the set of characters (step 301). The processinitiates a notification prompt that has a play button, a downloadbutton, and a close button (step 303). However, as mentioned above, thegraphical elements of the notification prompt can vary.

The process determines whether the play button has been selected by theuser (step 305). If the process determines that the play button has beenselected by the user, the process plays the identified segment of themedia file (step 307). The process then returns to step 305.

Returning to step 305, if the process determines that the play buttonhas not been selected by the user, the process determines if thedownload button has been selected by the user (step 309). If the processdetermines that the download button has been selected by the user, theprocess downloads the identified segment of the media file (step 311).The process then returns to step 305.

Returning to step 309, if the process determines that the downloadbutton has not been selected by the user, the process determines whetherthe close button has been selected by the user (step 313). If theprocess determines that the close button has not been selected by theuser, the process returns to step 305. If the process determines thatthe close button has been selected by the user, the process thenterminates.

The flowcharts and block diagrams in the different depicted embodimentsillustrate the architecture, functionality, and operation of somepossible implementations of apparatus, methods and computer programproducts. In this regard, each block in the flowchart or block diagramsmay represent a module, segment, or portion of code, which comprises oneor more executable instructions for implementing the specified functionor functions. In some alternative implementations, the function orfunctions noted in the block may occur out of the order noted in theFigures. For example, in some cases, two blocks shown in succession maybe executed substantially concurrently, or the blocks may sometimes beexecuted in the reverse order, depending upon the functionalityinvolved.

Referring to FIG. 8 , a block diagram of a computing device 402 is shownin which illustrative embodiments may be implemented. The computingdevice 402 may be the computing device 102 described in FIG. 1 or 2 .Computer-usable program code or instructions implementing the processesused in the illustrative embodiments may be located on the computingdevice 402. The computing device 402 includes a communications fabric403, which provides communications between a processor unit 405, amemory 407, a persistent storage 409, a communications unit 411, aninput/output (I/O) unit 413, and a display 415.

The processor unit 405 serves to execute instructions for software thatmay be loaded into the memory 407. The processor unit 405 may be a setof one or more processors or may be a multi-processor core, depending onthe particular implementation. Further, the processor unit 405 may beimplemented using one or more heterogeneous processor systems in which amain processor is present with secondary processors on a single chip. Asanother illustrative example, the processor unit 405 may be a symmetricmulti-processor system containing multiple processors of the same type.

The memory 407, in these examples, may be, for example, a random accessmemory or any other suitable volatile or non-volatile storage device.The persistent storage 409 may take various forms depending on theparticular implementation. For example, the persistent storage 409 maycontain one or more components or devices. For example, the persistentstorage 409 may be a hard drive, a flash memory, a rewritable opticaldisk, a rewritable magnetic tape, or some combination of the above. Themedia used by the persistent storage 409 also may be removable. Forexample, a removable hard drive may be used for the persistent storage409. The memory 407 or the persistent storage 409 may be used, forexample, to store one or more segments of a media file containinguser-definable characters, including the beginning and ending point ofsuch segments.

The communications unit 411, in these examples, provides forcommunications with other data processing systems or communicationdevices. In these examples, the communications unit 411 may be a networkinterface card. The communications unit 411 may provide communicationsthrough the use of either or both physical and wireless communicationlinks.

The input/output unit 413 allows for the input and output of data withother devices that may be connected to the computing device 402. Forexample, the input/output unit 413 may provide a connection for userinput through a keyboard and mouse. Further, the input/output unit 413may send output, such as a processing job, to a processing device. Inthe case in which the computing device 402 is a cellular phone, theinput/output unit 413 may also allow devices to be connected to thecellular phone, such as microphones, headsets, and controllers. Thedisplay 415 provides a mechanism to display information to a user, suchas a graphical user interface. The display 415 may be the graphical userinterface 104 in FIG. 1 or 2 , and may be used to display the promptsdescribed in the illustrative embodiments.

Instructions for the operating system and applications or programs arelocated on the persistent storage 409. These instructions may be loadedinto the memory 407 for execution by the processor unit 405. Theprocesses of the different embodiments may be performed by the processorunit 405 using computer-implemented instructions, which may be locatedin a memory, such as the memory 407. These instructions are referred toas program code, computer-usable program code, or computer-readableprogram code that may be read and executed by a processor in theprocessor unit 405. The program code in the different embodiments may beembodied on different physical or tangible computer-readable media, suchas the memory 407 or the persistent storage 409.

Program code 417 is located in a functional form on a computer-readablemedia 419 and may be loaded onto or transferred to the computing device402 for execution by the processor unit 405. The program code 417 andthe computer-readable media 419 form computer program product 421 inthese examples. In one embodiment, the computer program product 421 isthe character identification and notification system 100 in FIG. 2 . Inthis embodiment, the computing device 402 may be the computing device102 in FIG. 1 or 2 , and the program code 417 may includecomputer-usable program code capable of receiving a set of charactersinputted by the user of a computing device, playing a media file,transcribing the media file to form a transcription, and determiningwhether the transcription of the media file includes the set ofcharacters. The program code 417 may also include computer-usableprogram code capable of initiating a notification prompt on a graphicaluser interface of the computing device in response to determining thatthe media file includes the set of characters.

In another embodiment, the program code 417 may include computer-usableprogram code capable of receiving a set of characters inputted by a userof a computing device, playing a media file, and transcribing the mediafile to form a transcription. The program code 417 may also includecomputer-usable program code capable of identifying a beginning timepoint of a segment of the media file containing the set of characters.The transcription may be used to identify the beginning time point. Theprogram code 417 may also include computer-usable program code capableof identifying an ending time point of the segment of the media filecontaining the set of characters. The transcription may be used toidentify the ending time point. The program code 417 may also includecomputer-usable program code capable of storing the beginning time pointand the ending time point in the memory. Any combination of theabove-mentioned computer-usable program code may be implemented in theprogram code 417.

In one example, the computer-readable media 419 may be in a tangibleform, such as, for example, an optical or magnetic disc that is insertedor placed into a drive or other device that is part of the persistentstorage 409 for transfer onto a storage device, such as a hard drivethat is part of the persistent storage 409. In a tangible form, thecomputer-readable media 419 also may take the form of a persistentstorage, such as a hard drive or a flash memory that is connected to thecomputing device 402. The tangible form of the computer-readable media419 is also referred to as computer recordable storage media.

Alternatively, the program code 417 may be transferred to the computingdevice 402 from the computer-readable media 419 through a communicationlink to the communications unit 411 or through a connection to theinput/output unit 413. The communication link or the connection may bephysical or wireless in the illustrative examples. The computer-readablemedia 419 also may take the form of non-tangible media, such ascommunication links or wireless transmissions containing the programcode 417.

The different components illustrated for the computing device 402 arenot meant to provide architectural limitations to the manner in whichdifferent embodiments may be implemented. The different illustrativeembodiments may be implemented in a data processing system includingcomponents in addition to or in place of those illustrated for computingdevice 402. Other components shown in FIG. 8 can be varied from theillustrative examples shown.

As one example, a storage device in the computing device 402 is anyhardware apparatus that may store data. The memory 407, the persistentstorage 409, and the computer-readable media 419 are examples of storagedevices in a tangible form.

In another example, a bus system may be used to implement thecommunications fabric 403 and may be comprised of one or more buses,such as a system bus or an input/output bus. Of course, the bus systemmay be implemented using any suitable type of architecture that providesfor a transfer of data between different components or devices attachedto the bus system. Additionally, the communications unit 411 may includeone or more devices used to transmit and receive data, such as a modemor a network adapter. Further, a memory may be, for example, the memory407 or a cache such as found in an interface and memory controller hubthat may be present in the communications fabric 403.

The principles of the present invention can take the form of an entirelyhardware embodiment, an entirely software embodiment, or an embodimentcontaining both hardware and software elements. In one embodiment, theinvention is implemented in software, which includes but is not limitedto, firmware, resident software, microcode, and other computer readablecode.

Furthermore, the principles of the present invention can take the formof a computer program product accessible from a computer-usable orcomputer-readable medium providing program code for use by or inconnection with a computer or any instruction execution system. For thepurposes of this description, a computer-usable or computer readablemedium can be any tangible apparatus that can contain, store,communicate, propagate, or transport the program for use by or inconnection with the instruction execution system, apparatus, or device.

The previous detailed description is of a small number of embodimentsfor implementing the invention and is not intended to be limiting inscope. One of skill in this art will immediately envisage the methodsand variations used to implement this invention in other areas thanthose described in detail. The following claims set forth a number ofthe embodiments of the invention disclosed with greater particularity.

What is claimed:
 1. A method, comprising: playing, by a computingdevice, a media file; generating, by the computing device, atranscription of the media file including a set of characters;identifying, by the computing device, and while the media file isplaying, a segment of the media file corresponding to the portion of thetranscription; displaying, by the computing device, a notificationprompt on a graphical user interface of the computing device in responseto the generating; and accessing, by the computing device, only theidentified segment of the media file in response to a selection of thebutton by the user to be played by the computer device.
 2. The method ofclaim 1, wherein the button is a play button.
 3. The method of claim 1,further comprising: identifying, by the computing device, a sub-segmentin which the set of characters occurs, wherein the sub-segment is markedby a beginning time point and an ending time point within a segment. 4.The method of claim 1, wherein the set of characters form one or morewords.
 5. The method of claim 1, wherein the media file includes audio.6. The method of claim 1, wherein the receiving a set of characters foridentification from a user of a computing device further comprises:displaying an entry prompt on the graphical user interface, andreceiving, by the entry prompt, the set of characters.
 7. The method ofclaim 1, wherein the generating the transcription further comprises:transcribing the media file using a speech-to-text application.
 8. Acomputing device, comprising: a memory storing instructions; and aprocessor to execute the instructions to configure the processor to:play a media file, generate a transcription of the media file includinga set of characters, identify, while the media file is playing, asegment of the media file corresponding to the portion of thetranscription, cause a graphical user interface of the computing deviceto display a notification prompt, including a button, in response to thegenerate, and access only the identified segment of the media file inresponse to a selection of the button by the user to be played by thecomputer device.
 9. The computing device of claim 8, wherein theselection of the button causes the processor to play the identifiedsegment of the media file.
 10. The computing device of claim 8, wherein,when the processor is to generate the transcription, the processorfurther is to transcribe the media file while the computer device playerplays the media file.
 11. The computing device of claim 8, wherein theprocessor further is to: generate at least one of an audio or visualalert to notify the user of the identified segment.
 12. The computingdevice of claim 8, wherein, when the processor is to receive a set ofcharacters, the processor further is to: display an entry prompt on thegraphical user interface, and receive, by the entry prompt, the set ofcharacters.
 13. The computing device of claim 8, wherein the media fileincludes audio.
 14. The computing device of claim 8, wherein theprocessor further is to: identify a sub-segment in which the set ofcharacters occurs wherein a beginning time point and an ending timepoint are identified by the identification module from thetranscription, and wherein the sub-segment is marked by the beginningtime point and the ending time point within the segment.
 15. Anon-transitory computer-readable medium storing instructions that whenexecuted be a processor of a computer device cause the processor to:play a media file; generate a transcription of the media file includinga set of characters; identify, while the media file is playing, asegment of the media file corresponding to the portion of thetranscription; cause a graphical user interface of the computing deviceto display a notification prompt, including a button, in response to thegenerate; and access only the identified segment of the media file inresponse to a selection of the button by the user to be played by thecomputer device.
 16. The non-transitory computer-readable medium ofclaim 15, wherein the media file includes audio.
 17. The non-transitorycomputer-readable medium of claim 15, wherein the button is a playbutton.
 18. The non-transitory computer-readable medium of claim 15,wherein the instructions further cause the processor—to: display abeginning time point and an ending time point of the identified segmenton the notification prompt.
 19. The non-transitory computer-readablemedium of claim 18, wherein the instructions further cause the processorto: identify the beginning time point as a first time period before anoccurrence of the set of characters in the media file; and identify theending time point as a second time period after the occurrence of theset of characters in the media file.
 20. The non-transitorycomputer-readable medium of claim 15, wherein the instructions furthercause the processor to: identify a sub-segment in which the set ofcharacters occurs, wherein the sub-segment is marked by a beginning timepoint and an ending time point within a segment.